Schools in Plankinton, South Dakota, the US. Schools locations in Plankinton, South Dakota. Find the nearest schools locations, near you. All types of business services Accounting ATM Courthouse Finance Insurance Lawyer School All schools in Plankinton Cruthoff School School Plankinton, Plankinton, South Dakota 57368 Write a review Phone Directions Plankinton School School +1 605-942-7743 404 Davenport Street, Plankinton, South Dakota 57368 Write a review Phone Website Directions Turner School School Plankinton, Plankinton, South Dakota 57368 Write a review Phone Directions